CSS Worksheet: Hex and RGB Colours

HTML and CSS lesson 15: Colours: hex and rgb · Set 315 · 40 questions

Code tip (Red, green, blue): rgb(red, green, blue): each from 0 to 255. #rrggbb: the same three numbers in hex. Hex digits: 0–9, then a = 10, b = 11, c = 12, d = 13, e = 14, f = 15. A pair = 16 × first digit + second digit: ff = 16 × 15 + 15 = 255.

1. 1.🌈 In #rrggbb, which colour do the first two digits give? (a) red (b) black (c) blue (d) green
2. 2.🌈 How many pairs of hex digits are in a colour like #ff8800? (a) 6 (b) 3 (c) 2 (d) 4
3. 3.🌈 Which colour is #ff0000? (a) bright green (b) red (c) yellow (d) magenta
4. 4.🌈 Hex digits go 0 to 9, then A to which letter? (a) Z (b) G (c) J (d) F
5. 5.🌈 Which colour of light is strongest in rgb(158, 12, 42)? (a) blue (b) red (c) green
6. 6.🌈 Which hex code is bright green? (a) #ff00ff (b) #000000 (c) #0000ff (d) #00ff00
7. 7.🌈 In #0000f2 the blue part is the hex number f2. What is it as a normal number?
8. 8.🌈 Which colour of light is strongest in rgb(153, 45, 115)? (a) green (b) blue (c) red
9. 9.🌈 In #00005c the blue part is the hex number 5c. What is it as a normal number?
10. 10.🌈 In #rrggbb, which colour do the last two digits give? (a) green (b) blue (c) white (d) red
11. 11.🌈 Which colour is rgb(0, 255, 0)? (a) bright green (b) black (c) cyan (d) red
12. 12.🌈 In #9b0000 the red part is the hex number 9b. What is it as a normal number?
13. 13.🌈 Which colour is rgb(255, 255, 0)? (a) blue (b) bright green (c) black (d) yellow
14. 14.🌈 Which colour of light is strongest in rgb(101, 226, 69)? (a) green (b) blue (c) red
15. 15.🌈 Which colour is #ff00ff? (a) blue (b) magenta (c) yellow (d) red
16. 16.🌈 Which colour is #00ffff? (a) cyan (b) red (c) magenta (d) bright green
17. 17.🌈 Which hex code is white? (a) #ffffff (b) #00ffff (c) #ffff00 (d) #ff0000
18. 18.🌈 Which colour of light is strongest in rgb(201, 91, 96)? (a) blue (b) red (c) green
19. 19.🌈 Which hex code is blue? (a) #0000ff (b) #ffff00 (c) #00ffff (d) #000000
20. 20.🌈 In #cc0000 the red part is the hex number cc. What is it as a normal number?
21. 21.🌈 Which colour of light is strongest in rgb(80, 61, 172)? (a) red (b) green (c) blue
22. 22.🌈 What is the biggest number one colour can have in rgb()? (a) 100 (b) 255 (c) 1000 (d) 99
23. 23.🌈 In #001a00 the green part is the hex number 1a. What is it as a normal number?
24. 24.🌈 Which colour is rgb(0, 255, 255)? (a) cyan (b) white (c) blue (d) magenta
25. 25.🌈 Which colour is #00ff00? (a) magenta (b) bright green (c) black (d) cyan
26. 26.🌈 Which hex code is cyan? (a) #0000ff (b) #ffff00 (c) #ff0000 (d) #00ffff
27. 27.🌈 Which hex code is red? (a) #000000 (b) #00ff00 (c) #ffffff (d) #ff0000
28. 28.🌈 Which colour is rgb(255, 0, 0)? (a) red (b) bright green (c) black (d) yellow
29. 29.🌈 Which colour is rgb(0, 0, 0)? (a) yellow (b) magenta (c) blue (d) black
30. 30.🌈 In #000082 the blue part is the hex number 82. What is it as a normal number?
31. 31.🌈 Which colour of light is strongest in rgb(134, 0, 195)? (a) green (b) red (c) blue
32. 32.🌈 Which colour of light is strongest in rgb(50, 231, 137)? (a) red (b) green (c) blue
33. 33.🌈 In #002d00 the green part is the hex number 2d. What is it as a normal number?
34. 34.🌈 Which colour is #ffffff? (a) white (b) bright green (c) magenta (d) red
35. 35.🌈 Which colour of light is strongest in rgb(95, 207, 102)? (a) blue (b) red (c) green
36. 36.🌈 Which colour of light is strongest in rgb(72, 110, 211)? (a) blue (b) red (c) green
37. 37.🌈 In #0000e8 the blue part is the hex number e8. What is it as a normal number?
38. 38.🌈 Which colour is #000000? (a) cyan (b) white (c) blue (d) black
39. 39.🌈 Which hex code is black? (a) #00ffff (b) #000000 (c) #ffffff (d) #ff0000
40. 40.🌈 In #00003f the blue part is the hex number 3f. What is it as a normal number?

Free html and css lessons, practice and worksheets at talentjr.in/html-css-for-kids